Claim Number:42647461 Worker Name:MARK HOLAND Date Created:13-4-2026 1:05 PM you trust the sender and know they're safe. Contact the Technology Support Desk if you're not sure. Hello, Please find attached a copy of the CozZie Glow project writeup. | have also uploaded it to the claim document server for your records. This document describes the independent sleep study infrastructure | built following my injury - including the hardware, software, data logging pipeline, and the feedback loop theory | developed from the footage collected. | hope it provides useful context for my file. Thank you for your time. Mark Holand Claim 42647461 236-994-3376 marktholand@gmail.com Type: Worker Contact - Event Status: Completed MARK HOLAND Date of Contact: 2026/03/11 Created by: JC21642 Method: Email Contact type: Ongoing Contact Regarding: Update Outcome: Emailed Details: From: mark holand <marktholand@gmail.com> Sent: Friday, March 6, 2026 11:22 AM To: Cassady, Jaylin <Jaylin.Cassady@worksafebc.com> Subject: Subject: Mark Holand - Claim 42647461 - Acoustic Data Set - PDF and Source Files Attached Warning: External sender Be alert. This email is not from within our organization. Don't click links or attachments unless you trust the sender and know they're safe. Contact the Technology Support Desk if you're not sure. Hi Jaylin, Thank you for calling this morning. As | mentioned, due to my current medical state | find it easier to communicate by email, as it gives me time to think before responding. | appreciate your understanding. As discussed, | wanted to ensure your investigators have access to my complete acoustic data. | realized | may not have uploaded the original data sets - the portal does not accept .ixt files directly, which may have caused the gap. | have attached two versions of the data to support your investigation: A PDF copy - for security and tamper-evident documentation. The original .txt files - which are easier to import directly into Excel for analysis. Both contain the same data. | have included both formats to make the review process as straightforward as possible for your investigators. Please let me know if there is anything else you need from me. Sincerely, Mark Holand 236-994-3376 Claim# 42647461 Type: Worker Contact - Event Status: Completed MARK HOLAND Date of Contact: 2026/03/04 Created by: JC21642 Method: Email Contact type: Ongoing Contact Regarding: Update Outcome: Emailed Details: From: Cassady, Jaylin <Jaylin.Cassady@worksafebc.com> Sent: Wednesday, March 4, 2026 11:20 AM To: mark holand <marktholand@gmail.com> Subject: Re: Subject: Urgent - Ongoing Decline - Formal Impact Statement - Mark Holand Page 25